6 
LXXIV. RUBIACEjE. 
[. Mitragyne. 
Corolla-tube long; leaves small . . 61, Amaracarpus 
Epiphytes with tuberous stems tenanted 
by ants. 
Pyrenes 2 ; stem and branches not spiny 62. Hydnophyium 
Pyrenes 3 ; stem and branches spiny . 63. Myrmecodia 
Climbing plants; flowers in branched or 
panicled cymes; stamens from 
corolla base; pyrenes dry, flat 
or globose .... 64* P^deria 
Herbs with small capsules or 2 cocci; 
flowers axillary small (habit of 
Hedy otis). 
Cocci indehiscent . . . • 65. Diodia 
Cocci dehiscent on inner face . . 66. Borreria 
Herbs; flowers in terminal corymbs; cocci 
indehiscent . . .67. Knoxia 
1 . MITRAGYNE, Korth. 
Trees or shrubs. Flowers sessile, in globose, solitary or panicled 
heads mixed with spathulate paleaceous bracts ; peduncle with 
2 petioled leafy bracts near tip. Calyces conoid, separate tube 
short, truncate or 5 - lobed. Corolla funnel-shaped; tube long, a 
ring of hairs in mouth; lobes 5, thickened at tip. Stamens 5, 
above a ring of hairs; anthers lanceolate, cordate. Ovary 2-celied. 
Stigma cylindric or mitriform. Fruit of two 5~ridged cocci dehiscing 
at top. Seeds numerous, winged. Species 8, Indo-Malayan, 
3 African. 
Leaves oblong-ovate; stipules lanceolate . . . (0 M. speciosa 
Leaves orbicular or ovate; stipules obovate . . (2) M. parvifolia 
(1) M. speciosa Korth, Obs. de Nauclees Ind. 19; King, 
lx. 119. 
Large tree 40 to 50 ft. tall, 2 to 3 ft. through. Leaves mem¬ 
branous, oblong-ovate sub-acuminate, base broad round, glabrous 
or nerves 12 to 15 pairs elevate beneath puberulous, 4 to 5-5 in. 
long, 2 to 3-5 in. wide; petioles 1-2 in. long. Stipules lanceolate, 
pubescent. Heads 3, one very shortly peduncled between two on 
the ends of long branches 2 in. long, 1 in. through in flower, deep 
yellow. Corolla -3 in. long. Fruit-head -5 in. through. Hab. 
Open country, rather rare. Pahang River at Kwala Berar. Perak, 
Ulu Bubong (Kunstler). Distrib. Malay isles. Native name: Kutum. 
(2) M. parvifolia Korth. Obs. de Nauclees hid. 19; Haviland, 
Journ. Linn. Soc. xxxiii. 69. 
Tree about 30 ft. tall. Leaves orbicular or ovate blunt acumin¬ 
ate, base round cordate or narrowed, 2 to 6 in. long, 1 to 4 in. 
wide; petioles -3 in. long. Stipules obovate. Peduncles usually 
in threes, axillary, 1-5 to 2-5 in. long. Heads 1 in. through. Calyx- 
tube cupular. Corolla *2 in. long. Fruit-head *5 in. through. 
Hab. Open pastures, rare. Setul Heath (Ridley). Distrib. India, 
Burma. 
